Support for thread cops



April V17,

J. R.. MowAT SUPPORT Foa THREAD coPs ATTORNEY i to the 'standand'pass underth'e lower end i of 'tlieQcopuof thread. so-that `the 'thread is 1 broken, thereby lnecessitating` rethreading or' `J-'Aiirns fR: MoWAr, .or i'zEAa'iY, New annsnY, essIGNoafro frire CLRK'TRA'D 1 l j Palsy, or; NEWARK, NEWJERSEY,

A consomman- @anew-JERSEY.

fsurrortrron. rHRAD Cors. f

A-ppiifeaon siga Jentete/141;'1926.'- serial no. iaas'zo;

invention relates' to an jimpifovement linsupportsffor"oeps or tubes et thread.V

Cops or tubes of thread for supplyinghighfspeed sewingunacln'ne's*Commonly comprise aA cylindrical ,or conefsha'ped core .hav-- manner to. build' upa 4cylindrical yor cione-v sl-iap'ed body. rWhile `in use the 'cop -or tube of Vtlirefadis supported Iinfupii-ght'position the A'cofpd'ro'm vaccidental displacement. A"It has lbeen' found that als Ythe thieadf'is'drawn p olf frointhe v4'cyl'ii'id-rical` or cene-shaped body cam loops of thread sometimesfall down onf the needle ar`1deonseY nent sto a' iaffeof averli.

bet-Ween the support'on the sewing mach-ine Y andithebott'om'of 'the' copfofltlnl'ead to prevent the `loolp'sfof thread from passingrunder the bottorn'of the cop ofthreacl.-v Soineof the .prior devices'preposed,,for preventing the lloops' 'of thread from passingunder the cop off 'thread and ybreaking ha-ve proved. unsat! v i'sfactory vv'because jtheyhave'not 'provided' "support, and other devices Which have prox-1 means for ixedly'securing 'thecop tothe ,Y vided means for 'securely fastening' the cop lto the support havefproved'unsatisfactoryV because they have been relatively complieatj yed 1n construction and consequently expen-y )sive to manufacture.

One object of the presentinventio'n is to produce an improved support for cops or tubes of thread of such construction that the copof thread will be held firmly on thesup 'i Vl port Without liability oi' accidental displacement therefronnso that the loops of thread y which fall onto the support lwill have'no opi placed thereon and yet be held hrmly in operative position. ri/.X'urther object of the y invention is to provide a thread cop support of this character with means Whereby'both cylindrical and cone-shaped cops may be sup'-` ported fromfthe same vdisk or plate. To

y these ends the invention consists in the'im'- recording-ly, 'there vhave v.been fmany eil'oris-` @some ofthem patentech'to vintel-pose "meansV proved .support` forceps orV tubes 'ol thread; hereinafter ully.described and particularly Y.

pointedou'tin'theappendedfclaiins.y In the accomp'a'i'iying'v drawings ,illustrate ing the'pr'e'lerred form oi the inventiomfFh l 'i lis a :perspective viewofa *form ol suppoi adapted for cylindrical'copsi; F Q'isasidel velevationjof va cylindricalfcop or tubefoi';

partei 'the ligurebeingisliownn' section.;-

thread in position on the support, VAthe lower Y Fig. 3 Aifs a top, plan of a form of 'support 1T. f

aside elevation o'fa eon'e-shapedeop orvtube f i of thread supportedY inpositionon tlie'supl port shown in Fig. 3', with the fbfottoni'ef the lgure'fsliown insectron f p i f ."The improved support for fcops orvtubes I' thread illustrated' infFjigs. landv coi-n4 prises' a ldis'l'orplate 5=Wl1icfh isfpreferably Composed of metal having at its; centerya'n like.` V rElie disk 'and bushing-are provided With a 'central liolefadapti'ng them to 'be placed over and held `by v.the 'usual yufpstanflingfpo'ston the supporteon'nected lwith the .upright externally'threaded bushingj. The chs'ke'andthe bush-ing' 6 `are inseparately lco1inected 'as by rivetingWeldingv 'or the sovsewing mahin'e. 1 @verlyi'n'g' the upper vsur-'.5

yieldinginaterial such a'sffelt against which the 'bottom of thev body of' thread 8 onthe cop or tube lis' adapted. to rest. rIhe disk 5' vthe cop, 'as shown in Fig.' 2, so that the loops and pad `7v aresubstantiallylarger in diamof thread fallin'gftrom the thread body 8 rest on the projecting rim of the nad V7. The threaded bushing V6 is of such size in external `diameter that it. may be screwed Y into the 'lowerf end of the cylindrieal copper `tube 10 on which the layers of thread y.8 are Wound. In order that the bushing 6 may be more readily-screwedinto the lowerend of the'cylindrical .cop or 4tube 10 andeut av thread therein',V `the bushing Gfis provided With a` plurality of vertical slots ll,v four being shovvn in `.the drawings, vWhich cause A the bushing to act as a tap,]so,that as the;

bushing:r is screwed into thefend of: the cop l0 the front or advancing faces of the-slots ll'cut a threadinto the. librous or otherrela-k tively soft material of Which the cop is composed. The slots 11 not only `constitute the bushingv in eectra tap 'butalso lend resili-A l 1 -v 110 ency to the walls or spaces of ther-bushing `6V the disk 5, resilient pad 7 and threaded bushing 6 is to be connected with the lower end of a cop' or tube of thread, the spiral threads on the bushing 6 enable the operator to establish a very tight engagement between the lower end of the body of threads 8 and the upper surface of theresilient pad 7, in effect burying they bottom of the body of threads 8 inthe soft yielding material 7, thereby effectively preventing-any loops ofthread which fall down onto the rim of the pad 7 from passing underV the body of thread. The threads eut into the lower end of thevzcop by the bushing 6 enable thev cop of thread to be removed and replaced again, the corresponding threads on each part again engag-ing each other and causing the klower end of the thread body S to press tightly against the upper surface of the felt pad 7.

In the form of theinvention shown in Figs. 8v and lathe disk 12, resilient pad 13 land threaded bushing Mare of the same construction as the corresponding parts shown in Figs. 1 and 2. ln order to adapt this form otthread support for vholding cones of thread 15 wound on a hollow conelike core 16, I provide an auxiliary ring or bushing 17 threaded internally to screw onto the bushing land provided externally with a threaded surfacer 18 having the same Vtaper vas the cone-shaped vcop 16 and of a size adapting it to screw into the lower end of the cop 16. By reference to Fig. 3 it will be seen that the ring 17 is provided with the vertical slots 19 which constitute it a tap in the same manner in which the slots 11 constitute the bushing VG a tap, so that as the ring is screwed into the lower end of a cop 16 the front or advancing 'faces of therslot-S 19 cut a thread into the lower lend of the cop 16. This enables the cone of thread 15 to be screwed tightly onto the support shown in Figs. 3 and ai, with the bottom of the body of thread buried firmly inthe pad ofv yielding material 13. 1n this form of support also the cop of thread maybe removed from its support in case another size or color of thread is to be used, and then replaced, the threads in the bottom of the cop readily engaging the corresponding threadson the bushing 17.

Having thus described the invention what I claim as new is :M y y f 1. A support for a cop of thread coni-y prising, a disk, a hollow bushing projecting nl iwardly from the disk and having an eX- ternal thread adapting it to be screwed into the bottom end or' the. cop, said bushing be#V ing provided with a plurality of longitudinal slots dividing the bushing into a plurality of resilient walls adapted to pressA yieldingly against the inner surface vof the cop, the front faces of the slots acting-to cut a thread in the bottom of the cop as the lbushingv is screwed therein', and a pad of yielding material. covering-'the upper surface of the disk and against which the bottom of the body of thread is adapted to press when the bushing is screwed fully into the bottom of the cop. Y

2. A support for a cop of thread compris i110- a disk, and a hollow bushing projecting from the center of thev disk and provided Yexternallyvwith a thread adapting it. to be screwed into the bottom end of the cop, saidr bushing being provided with a plurality of longitudinal slots dividingthe bushing into a plurality of resilient walls which yieldingly press outwardly against the inner surface of the bottom end of the cop. u

JAMES R. MOVAT. 

